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GOODWILL (Tables)
 12 Months Ended
Dec. 31, 2019
Goodwill and Intangible Assets Disclosure [Abstract]  
Schedule of Goodwill
The Company has recorded the following Goodwill on its acquisitions:
(millions of Canadian $)
U.S. Natural
Gas Pipelines

 
 
Balance at January 1, 2018
13,084

Tuscarora impairment charge
(79
)
Foreign exchange rate changes
1,173

Balance at December 31, 2018
14,178

Sale of Columbia midstream assets
(595
)
Foreign exchange rate changes
(696
)
Balance at December 31, 2019
12,887